Do you use a MIDI controller with it Rog? I'm using an old Novation Bass Station keyboard with it and assigning knobs, but I've been toying with the idea of picking up one of these dedicated Ableton MIDI controllers just for maximum knobage control:
One super fun thing to do is assign a bunch of different effects or parameters to a single knob. You can get some nutty effects that way. I've also just started assigning keyboard shortcuts to trigger clips. I wish I didn't have a job so I could play with this shit all day.